Usgs Historical Topographic Map Explorer. Geological Survey (USGS) from the inception of the topographic mapping program in 1884 until the last paper topographic map using lithographic printing technology was published in 2006. These topo maps are available as a digital library spanning 125 years
USGS Historical Topographic Map Explorer · University District Stories from courses.washington.edu
The US Topo series is a latest generation of topographic maps modeled on the USGS historical 7.5-minute series (created from 1947-1992) These maps are modeled on the familiar 7.5-minute quadrangle maps of the period 1947-1992, but are mass-produced from national GIS databases on a repeating cycle
USGS Historical Topographic Map Explorer · University District Stories
Esri's USGS Historical Topographic Map collection contains scanned maps that were published as an ArcGIS Online image service In 2011, the USGS National Geospatial Program began publishing scans of 1:250,000. The recently updated Historical Topo Map Explorer app helps you visually explore and access over 181,000 historical scanned USGS topo maps, and you can add terrain, satellite imagery, and labels to the display
Usgs Maps. US Topo maps repackage geographic information system (GIS) data in traditional. These maps are modeled on the familiar 7.5-minute quadrangle maps of the period 1947-1992, but are mass-produced from national GIS databases on a repeating cycle
. Visit Historical Topographic Maps - Preserving the Past for more information. The Historical Topo Map Explorer provides a visual way to search and explore these thousands of maps via geographic extent, publication year, and map scale.